TY  - JA
AU  - Evans,C.E.
TI  - Soil test calibration
SN  - 0081-1904
U1  - 89-064050 
PY  - 1987///
KW  - Agronomic characters
KW  - AGROVOC
KW  - Processing
KW  - Productivity
KW  - Profitability
KW  - Soil fertility
KW  - Yields
N1  - references. Paper presented at a Symposium on "Soil Testing: Sampling, Correlation, Calibration, and Interpretation," December 5, 1985, Chicago, Illinois
T2  - Soil Science Society of America Special Publication Series
ER  -